Mercurial > SimpleWebPresenter
diff cache_check.inc @ 14:91ee5f49907e
Correct caching.
We could probably push caching earlier, but more important that it is
correct.
| author | Tom Fredrik "BFG" Klaussen <bfg@blenning.no> |
|---|---|
| date | Wed, 19 Sep 2012 13:55:58 +0200 |
| parents | 6c0162497d56 |
| children | f51be7b9711a |
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--- a/cache_check.inc Wed Sep 19 12:42:32 2012 +0200 +++ b/cache_check.inc Wed Sep 19 13:55:58 2012 +0200 @@ -1,17 +1,18 @@ <?php -if (DEBUG) - var_dump($_SERVER); +function cache_check($mtime) +{ + if (DEBUG) + var_dump($_SERVER); -$HTTP_IF_MODIFIED_SINCE=$_SERVER['HTTP_IF_MODIFIED_SINCE']; -$if_modified_since = preg_replace('/;.*$/', '', $HTTP_IF_MODIFIED_SINCE); + $HTTP_IF_MODIFIED_SINCE=$_SERVER['HTTP_IF_MODIFIED_SINCE']; + $if_modified_since = preg_replace('/;.*$/', '', $HTTP_IF_MODIFIED_SINCE); -$SCRIPT_FILENAME=$_SERVER['SCRIPT_FILENAME']; -$mtime = filemtime($SCRIPT_FILENAME); -$gmdate_mod = gmdate('D, d M Y H:i:s', $mtime) . ' GMT'; + $gmdate_mod = gmdate('D, d M Y H:i:s', $mtime) . ' GMT'; -if ($if_modified_since == $gmdate_mod) { + if ($if_modified_since == $gmdate_mod) { header("HTTP/1.0 304 Not Modified"); exit; + } + header("Last-Modified: $gmdate_mod"); } -header("Last-Modified: $gmdate_mod"); ?> \ No newline at end of file